Elastic wheel.



J. G. MAULACI-ILAN.

ELASTIG WHEEL.

APPLICATION FILED` APB. 22, 1909.

988,201 Patented Mar. 28, 1911.

'UNITED STATES' PATENT OFFICE.

JOHN C. MACLACHLAN, 0F CHICAGO. ILLINOIS, ASSIGNOR, BY DIRECT A ND MESNE ASSIGNMENTS, OF THREE-FOURTHS TO ALBERT P. HUNT, 0F CHICAGO, ILLINOIS.

v ELASTIC WHEEL.

Specication of Letters Patent. Application filedv April 22, 1909. Serial No. 491,561.

'llo all whom it may concern:

fle it known that l, JonN C. MACLACH- LAN, a citizen of the United States, residing at Chicago, in the county of Cook and State ot' Illinois, have invented a certain new and useful Improvement in Elastic Wheels, ot which the following is a specification.

My invention relates to elastic wheels and particularly a. device for protecting the tire which is preferably in the nature of a pneumatic tire.

It is illustrated in the accompanying drawings wherein;-

Figure 1 is a slde elevation of'a portion of a wheel rim with parts broken awa and parts shown in section on the section line of Fig. 2. Fig. 2 is a cross'section on the line 2-2 of Fig. 1 with parts brokengaway.

Like parts are indicated by the same letter in both figures.

A, A are s okes of the wheel secured at their outer ends to the felly B. 'Around this felly and secured to its outer surface by Screws C are two oppositely 'faced but separated flanged rings consisting each of the portion two flanged rings are separated b the lar e washer F and are secured'toget er by te transverse bolts G.

H, H are case sections sired manner, provided each may be secured to the section b the screws K, K and an outer flange L wliich may be integral with the section. The two flanges J, J inclose the felly and the ends of the spokes and protect the cavity between the sections. y

M, M are solid tires seated each in a channel rim N. These two rims are secured together and` to an intermediate guide flange by means of the transverse rivets P. The guide flange O enters the recess between the separated portions of the flanged rings D D. e case sections are secured together as follows: A ring Q, is secured by means of the rivets R to the inner face-of the rims N and the flange L on the section H is brought into the angle between the ring and the rim and there secured by the transverse screws S.

T, T are pneumatic tires preferably provided with the enlargements U to be received into the depressions V in the lower shaped in any debut preferably as shown and D and the lateral portion E. The

with an inner flange J which part of the case. sections, and similar depressions lV in the horizontal parts E ofthe flanged rings.

The several features and elements of construction here shown could be materially changed and varied and some of them dispensred with without departing from the spirit of my invention, butl. shall point out in the claims what l consider as of the essence of my invention.

The use and operation of my invention are perhaps sufficiently clear from the foregoing. On the outside -of the felly are securely mounted the flanged rin'gs'l), the upper laterally projecting parts E furnishing one Patented Mar. 28, 191.1.

side 'of the receptacle in which the pneumatic tire is to rest. The case sections are then brought 1together and assembled with the channel rims in the manner shown. As the wheel rotates on the ground the ressure is received u n the pneumatic -t1res, the case which ho ds them, moving with reference to the felly or wheel as the tires exand or are\compressed The central guide ange keepsthe solid tires and their associated parts in roper relation to the wheel and prevents ateral movement and noise. At the same time the pneumatic tires are very completely '.incased' or -inclosed, the cavity which contains them being onl its outer part entirely closed.

I claim z' y l. A tire-case comprising a fell a part rigid on the felly which is provide with an annular slot therein and forms two inner vertical and two, outer lateral walls for the tire, a part movable with respect to the felly and formin r two inner lateral and two outer vertical wa ls for the tire and a flan e on the movable part in .engagement wit the walls of said slot.

2. A wheel comprising spokes a. felly, a

T-shaped annular member rigidly attached to said telly having a'slot therein, a pneumatic tire upon either side of the T-shaped member, a slotted annular casin surrounding said T-shaped member and the felly, said tire interposed between said casing and said T-shapcd member, and an inwardly projecting ringaipon said casing in en ment with the' walls of the slot within said T-s h`aped member to act as a guide for said casing.

' 3. A wlieely comprising a felly and spokes for the tire, th .Casing hayin flan 'es seun elastic tire thcreabout, a frame rigid on cured thereto which inclos tie fel y andv the folly and T-shaped in cross-section and ends of the spokes.

forl'ning twoolinner ver-tical and two Outer JOHN C. MACLACHLAN. 5 lateral walls for the tire, a-casing movable Witnesses:

withl respect to the felly and forming two l EDNA K. REYNOLDS,

inner lateral and two ou'tex: vertical walls SOPHIE B. WERNER. 

